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Servicenow LeetCode Questions 2026

Browse LeetCode problems frequently asked by Servicenow. Filter by difficulty and timeframe to focus your interview prep.

Last updated: 20 Feb 2026

Timeframe

Difficulty

Problem	Difficulty	Frequency	Topics
Two Sum	EASY	62.5%	ArrayHash Table
Longest Substring Without Repeating Characters	MEDIUM	100%	Hash TableStringSliding Window
Median of Two Sorted Arrays	HARD	62.5%	ArrayBinary SearchDivide and Conquer
Longest Palindromic Substring	MEDIUM	50%	Two PointersStringDynamic Programming
Zigzag Conversion	MEDIUM	62.5%	String
Container With Most Water	MEDIUM	75%	ArrayTwo PointersGreedy
Valid Parentheses	EASY	87.5%	StringStack
Generate Parentheses	MEDIUM	75%	StringDynamic ProgrammingBacktracking
Find First and Last Position of Element in Sorted Array	MEDIUM	50%	ArrayBinary Search
First Missing Positive	HARD	75%	ArrayHash Table
Trapping Rain Water	HARD	87.5%	ArrayTwo PointersDynamic ProgrammingStackMonotonic Stack
Permutations	MEDIUM	50%	ArrayBacktracking
Group Anagrams	MEDIUM	75%	ArrayHash TableStringSorting
Maximum Subarray	MEDIUM	50%	ArrayDivide and ConquerDynamic Programming
Merge Intervals	MEDIUM	62.5%	ArraySorting
Best Time to Buy and Sell Stock	EASY	62.5%	ArrayDynamic Programming
Longest Consecutive Sequence	MEDIUM	50%	ArrayHash TableUnion-Find
Vowels of All Substrings	MEDIUM	50%	MathStringDynamic ProgrammingCombinatorics
LRU Cache	MEDIUM	100%	Hash TableLinked ListDesignDoubly-Linked List
Maximum Product Subarray	MEDIUM	62.5%	ArrayDynamic Programming

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